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[chrisdb]

Thanks guys. I've just driven down to Swindon in my hire car so I had quite a while to think over everything I did. I do remember now that I have to torqued the plenum - it is only slightly tightened. Also, I'm begining to wonder if I torqued the central cambelt adjuster. I know I did tighten it though.

There were no metal sounding noises. The last time the engine sounded like this was when I forgot to connect the breather pipe that goes from the brake server to the plenum - but that time the engine did run.

I had trouble getting the ram air box in at the from and there were two thin vacuum pipes that I had to connect. I think I got them the right was round because the pipes were not stretched, but I should have tried them both ways.

Thinking back, I remember checking every hose and cable that I could see and alll seemed OK.

I'm not going to be back home now until Thursday night. If I work from home on Friday I will have a little while to look at it again, otherwise it is going to be the weekend.

I really appreciate your help guys.

Cheers
Chris

[Robin Hood]

Since your plenum came off, did you remember to remove the kitchen roll from the intakes?  

[chrisdb]

Since your plenum came off, did you remember to remove the kitchen roll from the intakes?  

Yes I did  

[ians]

Did you remove the fuel rail when you had the plenum off?  If so, may take a short while to pressurise again..

Also did you remove HT leads?  If so, back in the correct order (and not dislodged from the DIS pack at the back?)

If you changed plugs and any oil dribbled into the cylinders this would also cause rough running (and smoke out of the back) for a while.

[chrisdb]

Did you remove the fuel rail when you had the plenum off?  If so, may take a short while to pressurise again..

Also did you remove HT leads?  If so, back in the correct order (and not dislodged from the DIS pack at the back?)

If you changed plugs and any oil dribbled into the cylinders this would also cause rough running (and smoke out of the back) for a while.

I removed all the pipes from the plenum so it could be the pressurisation as you suggest. I did not touch the ht leads or spark plugs.

I did think about the fuel, but on the dvd the car starts first time even though they disconnected the fuel line, and as I've been so nervous in case I did it wrong I did not want to try starting it too many times. Do you think it's worth giving it a try again to let the pressure build up?

[chrisdb]

Update : The car is not dead  

I decided to be braver and try to start the car again this morning. The plenum was loose so I tightend it and check all other hoses, pipes and wire were attached.

The car starts up and there are no metalic noises, but the engine revs up on its own to about 1500rpm. It does sound rough - as if spark plugs gone, and it starts to backfire slightly then stalls. Each time, all this happens in about 3 seconds.

Does it sound like I've screwed up the timing? I was really careful to align all the marks correctly...

Cheers
Chris

[Marks DTM Calib]

Sounds to me like the plenum is not seated or an O ring is missing.

I assume all the vac pipes are connected ok i.e. the brake servo pipe etc....

It realy sounds like an air leak

[Elite Pete]

It sounds to me like you've got an air leak.

[chrisdb]

Thanks Mark, I'll take the plenum off and check. I'm working from home today so I can do this at lunchtime and let you know.

[Entwood]

Did you replace all the plenum O-rings ??  if so .. did you remove ALL the old ones ??  First time I did mine I managed to leave one old one in.. but also put a new one on top .. this made the whole thing unseated until I noticed .. ( by counting the old rings and wondering why I was one short ... )

Guide to plenum removal/refit is here ...

http://www.omegaowners.com/forum/YaBB.pl?num=1159298765

[chrisdb]

Did you replace all the plenum O-rings ??  if so .. did you remove ALL the old ones ??  First time I did mine I managed to leave one old one in.. but also put a new one on top .. this made the whole thing unseated until I noticed .. ( by counting the old rings and wondering why I was one short ... )

Guide to plenum removal/refit is here ...

http://www.omegaowners.com/forum/YaBB.pl?num=1159298765

No, I did not change the O-rings, but I think I'll go and get some new ones. I have not looked yet, but it is possible thatone ore more got dislodged and is so will probably be damaged now.

When I was re-assemblung everything, I fitted the plenum, and then started putting back the air intake box - then I thought I had forgotten something so took the plenum off again, and I was not so careful putting it back the second time...

[Marks DTM Calib]

Did you replace all the plenum O-rings ??  if so .. did you remove ALL the old ones ??  First time I did mine I managed to leave one old one in.. but also put a new one on top .. this made the whole thing unseated until I noticed .. ( by counting the old rings and wondering why I was one short ... )

Guide to plenum removal/refit is here ...

http://www.omegaowners.com/forum/YaBB.pl?num=1159298765

No, I did not change the O-rings, but I think I'll go and get some new ones. I have not looked yet, but it is possible thatone ore more got dislodged and is so will probably be damaged now.

When I was re-assemblung everything, I fitted the plenum, and then started putting back the air intake box - then I thought I had forgotten something so took the plenum off again, and I was not so careful putting it back the second time...

I have never needed to replace any of the Orings, they are generaly always fine....

[cem_devecioglu]

Did you replace all the plenum O-rings ??  if so .. did you remove ALL the old ones ??  First time I did mine I managed to leave one old one in.. but also put a new one on top .. this made the whole thing unseated until I noticed .. ( by counting the old rings and wondering why I was one short ... )

Guide to plenum removal/refit is here ...

http://www.omegaowners.com/forum/YaBB.pl?num=1159298765

No, I did not change the O-rings, but I think I'll go and get some new ones. I have not looked yet, but it is possible thatone ore more got dislodged and is so will probably be damaged now.

When I was re-assemblung everything, I fitted the plenum, and then started putting back the air intake box - then I thought I had forgotten something so took the plenum off again, and I was not so careful putting it back the second time...

I have never needed to replace any of the Orings, they are generaly always fine....

I owe you a beer  [smiley=beer.gif]

was planning to change them all  

[Entwood]

Did you replace all the plenum O-rings ??  if so .. did you remove ALL the old ones ??  First time I did mine I managed to leave one old one in.. but also put a new one on top .. this made the whole thing unseated until I noticed .. ( by counting the old rings and wondering why I was one short ... )

Guide to plenum removal/refit is here ...

http://www.omegaowners.com/forum/YaBB.pl?num=1159298765

No, I did not change the O-rings, but I think I'll go and get some new ones. I have not looked yet, but it is possible thatone ore more got dislodged and is so will probably be damaged now.

When I was re-assemblung everything, I fitted the plenum, and then started putting back the air intake box - then I thought I had forgotten something so took the plenum off again, and I was not so careful putting it back the second time...

I have never needed to replace any of the Orings, they are generaly always fine....

That's the difference between you and me ....  you know what you are doing !! me .. I just read the guides, print them, and then try and follow them, whilst always hoping and praying at the same time !!

[Marks DTM Calib]

Lol....they are not generaly a delaer stocked item anyway.